Question

Height of different students (in cms) is 102, 104, 87, 97, 109, 117, 118, 99, 101, 103, 107. Find the Mean of height of all the students.  
1. 102.5
2. 103
3. 104
4. 118

Answer 1

Correct Answer - Option 3 : 104

formula used :

Means = Sum of all values/Number of values

Calculations :

Sum of all values = 102 + 104 + 87 + 97 + 109 + 117 + 118 + 99 + 101 + 103 + 107 

⇒ 1144 

Number of values = 11 

Mean = 1144/11 

⇒ 104 

∴ The Mean of the given set is 104